Of a sound, the objective strength of the sound expressed in terms of the rms pressure in dynes per square centimeter (or bars) or in Newtons per square meter or Pascals, or in terms of the power in Watts per square meter. The minimum audible difference in intensity is about 3 dB. A tenfold increase in intensity (power) = 10 dB. Doubling the audible intensity is equivalent to a rise of 3 dB.
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Intensity --
Of a sound, the objective strength of the sound expressed in terms of the rms pressure in dynes per square centimeter (or bars) or in Newtons per square meter or Pascals, or in terms of the power in Watts per square meter. The minimum audible difference in intensity is about 3 dB. A tenfold increase in intensity (power) = 10 dB. Doubling the audible intensity is equivalent to a rise of 3 dB.
